
.left-bar{
  width:40px;
  position: absolute;
  top:0;
  left:0;
  bottom: 0;
  background-color: #0a0a0a;
  color:#fff;
}
.right-box{
  position: absolute;
  top:0;
  left:40px;
  right:0;
  bottom:0;
}